Improved machine foe oieaning emeet



No. 77,281. I PATENTED APR. 28, 1868.

I J. HAWES & G. H. BLISS. v

, MACHINE FOR CLEANING EMBRY}.

finitrh giant ije wig t J; u. Ewes, OF BOSTON, AND GEORGE E. BLISS, OF WEST STOCKBEIDGE,

-MASSAGHUSETTS.

Leltcrs Patent No. 77,281, dated April 28, 1868.

IMPROVED nAcmnErmi'cm Eme M-EM.

To ALL WHOM i'r MAY con cums; I

Be it known that we, J. H. HAWES, of Boston, in thecounty of Sufl'ol'k, and State of Massachusetts, and. GEOEGE.H. Buss, of West Stockbridge, in the. county of Berkshire, in the same-State, have invented anew and useful Improvement for Rubbing and Separating Stone and other Foreign Matter from Emery, applicable also to other purposes, of which the following is a fnl l cle ar, and exact description, reference being had to the accompanying drawing, forming part of thisspecificetiom'and which represents a mainly central vertical section of a machine orapparatus constructed in accordance with our improvement.

Emery, as it is usually supplied to the various trades which use the article, is seldom or never free from stone or other foreign matter, and it has been found very difiicult to extract'orseparate such foreign substancesthcrefroin. The object of this our invention is to accomplish such result in amost simple and etficient manner; and our invention consists in a peculiarly-constructed machine for the'purpose, comprising among other features a, cylinder, preferably set vertical or thereahonts, throughwhich the emery, after it has been crushed to unite.- bleisize, is passed, and crooked or serpentine rubber arranged to rotate therein, and Serving to reduce or pulverize into a very fine dust, the stone and other foreign matter mixedup with the emery, as thelattefr is run through the cylinder, so that the separation may afterwards easily be efi'ected by an ordinary sifting process; said machine also embracing a disk or flange below the rubber, at the lower end of the cylinder, for retarding the discharge of the emery' from the latter inadvance of the stone or otherforeign matter being pulverized, which disk may have interposed between it and the lower end of the cylinder any suitable discharge-regulating device.

Referring to the accompanying drawing, A'is the cylinder, which may be of hopper-form at its top, into and down which the emery is fed and passed. This cylinder is shown. as. erected upon a receiving-box, B, into which it opens. Arranged to pass centrally up through the cylinder. A, and say through the box B,-is'a shaft, C, crooked or twist ed where it passes through the cylinder mama serpentine rubber,-or having a rubber, D, of such character secured to and carried by it. This rubber or its shaft is made to rotate, say, by any suitable gear arranged below the box B, or otherwise disposed, the same working in suitable bearings at either end.

. Below the lower end of the cylinder A, at a short distance from it, is arranged a disk, E, which maybe carried by the shaft 0 and which serves to retard the discharge br keep the emery in the cylinder till separated, or the Stone or. other foreign matter is fully pulverized; and between thisdisk and the lower end of the cylinder is or may ,belocatcd a discharge-regulating lever, F, or other suitable device, adjustable from the exterior, and opcrating'to more oi less che'ck'the discharge, as required. Around the shaft '0, where it passes through the bo'x B, may be set a tube, G, to protect the 'gear and work below from emery getting therein.

The rubber D thus constructed and operating, effectually serves, and in an expeditious manner, to reduce to a finc dry dust, stone or other foreign matter mixed up with the emery, so that on sifting'the contents of the box B, all such foreign matter is readily extracted. I

What is here claimed, or desired to be secured by Letters Patent, is- 4 1. The combination, with the cylinder A, of the rotating rubber -D, of serpentine form, substantially as specifi ed. I I v 3 ,2. The combination of the plate or disk E with the cylin'derA and .rubber D, for operation "together as described.

J. H. 'HAWES, GEO. H. BLISS.

Witnesses:

Win-'0. SPAULDING, JAE. J. Tnomson. 

